Protective cap for pop-up lawn sprinklers



FIG. 1 is a perspective view of a protective cap for pop-up lawn sprinklers showing our new design;

FIG. 2 is a top plan view thereof, on an enlarged scale;

FIG. 3 is a side elevational view thereof, all sides being identical, on an enlarged scale;

FIG. 4 is a bottom plan view thereof, on an enlarged scale; and,

FIG. 5 is a side elevational view thereof, the cap rim shown in an open position. 

The ornamental design for a protective cap for pop-up lawn sprinklers, as shown and described. 